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40 lines
1.6 KiB
Go
40 lines
1.6 KiB
Go
// SPDX-License-Identifier: MIT
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// Copyright (c) 2010 Khronos Group.
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// This material may be distributed subject to the terms and conditions
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// set forth in the Open Publication License, v 1.0, 8 June 1999.
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// http://opencontent.org/openpub/.
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//
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// Copyright (c) 1991-2006 Silicon Graphics, Inc.
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// This document is licensed under the SGI Free Software B License.
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// For details, see http://oss.sgi.com/projects/FreeB.
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//go:build !js
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// +build !js
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// Package gl implements Go bindings to OpenGL.
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package gl
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// Init initializes the OpenGL bindings by loading the function pointers (for
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// each OpenGL function) from the active OpenGL context.
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//
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// It must be called under the presence of an active OpenGL context, e.g.,
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// always after calling window.MakeContextCurrent() and always before calling
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// any OpenGL functions exported by this package.
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//
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// On Windows, Init loads pointers that are context-specific (and hence you
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// must re-init if switching between OpenGL contexts, although not calling Init
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// again after switching between OpenGL contexts may work if the contexts belong
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// to the same graphics driver/device).
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//
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// On macOS and the other POSIX systems, the behavior is different, but code
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// written compatible with the Windows behavior is compatible with macOS and the
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// other POSIX systems. That is, always Init under an active OpenGL context, and
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// always re-init after switching graphics contexts.
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//
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// For information about caveats of Init, you should read the "Platform Specific
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// Function Retrieval" section of https://www.opengl.org/wiki/Load_OpenGL_Functions.
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func Init() error {
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return InitWithProcAddrFunc(getProcAddress)
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}
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